Black Buttes Station (Cretaceous of the United States)

Also known as Agathaumas type

Where: Sweetwater County, Wyoming (41.6° N, 108.7° W: paleocoordinates 49.0° N, 84.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Lance Formation, Maastrichtian (72.1 - 66.0 Ma)

• "just above a thinner or lower stratum of the Bitter Creek series of coals and overlain by two other coal seams"

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified, tabular, argillaceous sandstone and coal

• "coastal swamps with abundant vegetation"
• "a bed of massive sandstone", "cemeted together by sand and clay"

Size class: macrofossils

Collected by F. B. Meek & H. M. Bannister in 1872; reposited in the AMNH

Collection methods: quarrying, surface (in situ), mechanical,

• some plants found in same bed, as well as above, but not described

Primary reference: E. D. Cope. 1872. On the existence of Dinosauria in the transition beds of Wyoming. Proceedings of the American Philosophical Society (separate) 1-2 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46117: authorized by Matthew Carrano, entered by Matthew Carrano on 03.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Ostreida - Ostreidae
Ostreidae indet. Rafinesque 1815 oyster
Reptilia
 Neornithischia - Ceratopsidae
Agathaumas sylvestris n. gen. n. sp.
Agathaumas sylvestris n. gen. n. sp. Cope 1872 ceratopsid
also "Agathaumas sylvestre"
Magnoliopsida
  -
"Dicotyledoneae indet." = Dicotyledonae
"Dicotyledoneae indet." = Dicotyledonae
"dicotyledonous leaves"